a justice department official says tsarnaev will not be read his miranda rights because the government is invoking a public safety exception. that exception is triggered when police have an objectively reasonable need to protect the police or the public from immediate danger. tsarnaev will be questioned by a special federal interrogation team for high-value suspects. >> president barak obama and republicans used their weekly addresses to celebrate the resolve americans demonstrated after the attack on the boston marathon. in the address obama emphsized that "the world witnessed one sure and steadfast truth: americans refuse to be terrorized." >> ultimately, that's what we'll remember from this week. that's what will remain. stories of heroism and kindness; resolve and resilience; generosity and love. in the days to come, we will remain vigilant as a nation. and i have no doubt the city of boston and its surrounding communities will continue to respond in the same proud and heroic way that they have thus far - and their fellow americans will be right there with them every step of the wa